Hudson W.D. Ed. <br/><br/>
Is - Ought Question . 

 - London  Macmillan         1969 
 - 971p.  cm. 
<br/><br/><label>Standard No.: </label>51434 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R4x, K9;1